Simple and stable charging system of flexible tower wind turbine generator stand-by power supply

The utility model belongs to the technical field of wind power generation, and relates to a simple and stable charging system of a flexible tower wind turbine generator stand-by power supply, which comprises a stand-by power supply and a variable pitch control driving system. A relay is arranged between the variable pitch control driving system and the standby power supply, charging voltage is controlled through the relay, the standby power supply is charged, the voltage detection sensor and the 4-20ma current signal generator are arranged in parallel with the relay, the voltage detection sensor is used for detecting the charging voltage, and the 4-20ma current signal generator is used for generating 4-20ma current signals. The utility model provides the simple and stable charging system of the flexible tower wind turbine generator stand-by power supply, the charging system is simple and stable, the original charging unit specially used for charging is omitted, the number of electrical elements is reduced, th